1115589 has 8 divisors (see below), whose sum is σ = 1494592. Its totient is φ = 740160.

The previous prime is 1115581. The next prime is 1115599. The reversal of 1115589 is 9855111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1115589 - 2³ = 1115581 is a prime.

It is an Ulam number.

It is a Duffinian number.

1115589 is a lucky number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49 + ... + 1494.

It is an arithmetic number, because the mean of its divisors is an integer number (186824).

2^1115589 is an apocalyptic number.

It is an amenable number.

1115589 is a deficient number, since it is larger than the sum of its proper divisors (379003).

1115589 is a wasteful number, since it uses less digits than its factorization.

1115589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1787.

The product of its digits is 1800, while the sum is 30.

The square root of 1115589 is about 1056.2144668579. The cubic root of 1115589 is about 103.7133687877.

The spelling of 1115589 in words is "one million, one hundred fifteen thousand, five hundred eighty-nine".